S=2f*tan(θ/2) |
なお、 |
S:フィルム上の像の大きさ f:焦点距離 θ:角度 |
焦点距離 | 1degの大きさ | 1minの大きさ |
200mm | 3.491mm | 0.058mm |
---|---|---|
300mm | 5.236mm | 0.087mm |
400mm | 6.981mm | 0.116mm |
500mm | 8.727mm | 0.145mm |
600mm | 10.472mm | 0.175mm |
800mm | 13.963mm | 0.233mm |
1000mm | 17.454mm | 0.291mm |
2000mm | 34.907mm | 0.582mm |
θ=2*tan-1(
36
/(2*
628
))*(180/π) |
=
3.283572
deg = 3 deg 17 min 0.86 sec |
焦点距離 | 長辺の角度 | 短辺の角度 | 対角の角度 |
200mm | 10.29deg | 6.87deg | 12.35deg |
---|---|---|---|
300mm | 6.87deg | 4.58deg | 8.25deg |
400mm | 5.15deg | 3.44deg | 6.19deg |
500mm | 4.12deg | 2.75deg | 4.96deg |
600mm | 3.44deg | 2.29deg | 4.13deg |
800mm | 2.58deg | 1.72deg | 3.10deg |
1000mm | 2.06deg | 1.38deg | 2.48deg |
2000mm | 1.03deg | 0.69deg | 1.24deg |
焦点距離 | 解像度2000dpi | 解像度2700dpi | 解像度3000dpi | |||
1deg | 10min | 1deg | 10min | 1deg | 10min | |
200mm | 274.9dot | 45.8dot | 371.1dot | 61.8dot | 412.3dot | 68.7dot |
---|---|---|---|---|---|---|
300mm | 412.3dot | 68.7dot | 556.6dot | 92.8dot | 618.4dot | 103.1dot |
400mm | 549.7dot | 91.6dot | 742.1dot | 123.7dot | 824.6dot | 137.4dot |
500mm | 687.2dot | 114.5dot | 927.7dot | 154.6dot | 1030.7dot | 171.8dot |
600mm | 824.6dot | 137.4dot | 1113.2dot | 185.5dot | 1236.9dot | 206.1dot |
800mm | 1099.4dot | 183.2dot | 1484.3dot | 247.4dot | 1649.2dot | 274.9dot |
1000mm | 1374.3dot | 229.0dot | 1855.3dot | 309.2dot | 2061.5dot | 343.6dot |
2000mm | 2748.6dot | 458.1dot | 3710.6dot | 618.4dot | 4122.9dot | 687.1dot |